天气预报15天查询> 其他> 如何用肉眼估算猪体重

如何用肉眼估算猪体重

更新时间: 2020-11-09 00:00:00     

肉眼估算猪体重的方法如下(需要配备一根通用卷尺):

1、头等膘情肥猪:

体重(公斤)=(体长×肩胛骨后胸围)÷142

2、中等膘情猪:

体重(公斤)=(体长×肩胛骨后胸围)÷156

3、下等膘情猪:

体重(公斤)=(体长×肩胛骨后胸围)÷162

体长是从两耳根间连线的中间起,沿背到尾根长(厘米),肩胛骨后胸围,用卷尺沿肩胛骨后缘绕胸一周的长度(厘米),这种计算方法一般误差5%。

关键词: 何用 肉眼 估算 体重

如有意见、反馈、侵权或投诉等情况,请联系:

电话:
邮箱:

我们将会在48小时内给与处理!

版权所有 Copyright ? 2009-2020 tianqiyubao3.com

页面:/news/view-669373/ | 耗时:0.9556 s | 内存:1.89 MB | 查询:4 | 缓存读取:4 写入:0 | 加载文件:23
select * from tbl_Articles WHERE ArticleID=669373 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=669373 LIMIT 0,1
select * from tbl_Articles_sphinx where id=669373 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(3267306,1286823,252800,149335,1621201,355633,1415890,1076640,1722480,478809,1462755,1316166,958595,1276898,1542244,1700859,1411687,838124,482656,333561,1046110,1828163,508499,264588,334814,1692799,1679937,1320003,887661,1755063) ORDER BY field (ArticleID,3267306,1286823,252800,149335,1621201,355633,1415890,1076640,1722480,478809,1462755,1316166,958595,1276898,1542244,1700859,1411687,838124,482656,333561,1046110,1828163,508499,264588,334814,1692799,1679937,1320003,887661,1755063)